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Anna007 [38]
3 years ago
14

Choose the best definition for the following term: substitution

Mathematics
2 answers:
Tatiana [17]3 years ago
8 0
The best definition for the term substitution would be...

the action of replacing someone or something with another person or thing.
vovangra [49]3 years ago
4 0
The word “ substitution " means that to use something new or different instead of something else. Also, it can use in math,too. For example,
I have two slope intercept form

y-2x=6

-y-4x=24

Now, we just need to substitute the two of them to find x and y

-y-4x=24
+
y-2x=6
=
-6x=30
x=-5
Then, replace variable if x in one of them to find y

y-2x=6
y-2(-5)=6
y+10=6
y=6-10
y=-4. Hope it help!
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Pls help find shaded area
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<h3>Exact area = 12pi - 9*sqrt(3)  square inches</h3><h3>Approximate area = 22.1106545749577 square inches</h3>

==========================================================

Work Shown:

Assuming the chord is horizontal along with the diameter, then this means the two smallest minor arcs are both 30 degrees each. This leaves the northern most arc to be 180-30-30 = 120 degrees in measure

A = area of northern sector (you can think of it as a pizza slize)

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